Abundant, deficient and perfect number classifications: Difference between revisions
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=={{header|Scala}}== |
=={{header|Scala}}== |
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<lang Scala>def properDivisors(n: Int) = (1 to n/2).filter(i => n % i == 0) |
<lang Scala>def properDivisors(n: Int) = (1 to n/2).filter(i => n % i == 0) |
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def |
def classifier(i: Int) = properDivisors(i).sum compare i |
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val groupNames = Vector("Deficient", "Perfect", "Abundant") |
val groupNames = Vector("Deficient", "Perfect", "Abundant") |
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val |
val groups = (1 to 20000).groupBy( classifier ) |
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val groups = divisors.groupBy(divider) |
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groups.foreach( v => println(groupNames(v._1 + 1) + ": " + v._2.length) )</lang> |
groups.foreach( v => println(groupNames(v._1 + 1) + ": " + v._2.length) )</lang> |
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{{out}} |
{{out}} |
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